Axel
TPF Noob!
Does anyone know what the following filters are about: Tiffen 52mm FL-B filter and an FL-D filter? I have been trying to find some info on the web but no success so far...
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Jamie R said:Fluorescent balancing filters if you shoot near fluorescent lights.
Good luck.
Hertz van Rental said:Best to avoid shooting colour under flourescents. There are so many tubes and they all have such whacky spectrums that filtering is a lottery.
Axel said:And how do I have to adjust the exposure for these filters... They talk about 1/3 step up or down... Since I have an AF I can only add or subtract ½... How important are these exposure numbers when it comes to taking pictures with filters?
ksmattfish said:
As long as you are using a camera that meters through the lens, you don't really have to worry about it. The filter blocks the light going to the light meter also, so just meter as you normally do.
Not strictly true. The cells used in camera meters tend to have a different spectral response to the the film. Filters on the lens change the light spectrum going in so the light meter can be fooled into going under or over depending on a number of factors. If you need to take 1/2 a stop out but the meter thinks the light is 1/2 stop brighter your exposure can be a whole stop out.
I would advise you use a handheld if the work is critical.
Hertz van Rental said:No problem.
Can't help with #1 as I don't use Nikons.
#2: I presume you mean a Wratten 2A. I think hoya use the same system. Their website is a ***** and has no info.
A 2A is used to absorb UV
An 81A is a specific clour temperature balancing filter for tungsten film to daylight.
May look vaguely similar but their transmission properties are not and they don't do the same job.
I can go into greater detail if you like but I hope this helps.
Hertz van Rental said:Ahh! Then I think it does just what it says on the box. It just adds a colour cast. I think the aim is to get an effect a bit like evening sunlight maybe. I suspect it's primarily intended for portraits - but who knows?
Watcha gonna use it fer? If it's just portraits in colour there are better ways.